Extrusion Screws
Extrusion Screws
Screw Specifications
Diameter: 25 mm to 200 mm
Length: Up to 6000 mm
Base Materials:
Screws are manufactured from high-performance materials to ensure strength and durability, including:
- Nitroalloy steel (AISI 4340 NITRALLOY 135M)
- Stainless steel (304, 316, 416, 17-4PH)
- Tool steel
- CPM tool steel
Hardening & Heat Treatment:
Our screws undergo advanced hardening and heat treatment processes to enhance their longevity and performance:
- Toughening and tempering
- Gas/Ion nitriding
- Optional bimetallic coatings for added protection
We also offer special surface treatments such as hard nickel plating, chrome plating, PVD coatings, HVOF thermal spray, PTA weld overlay, and vacuum through-hardened screws for optimal wear resistance.
High-Performance Screw Designs:
1. High-Productivity Smooth Barrier MeltPro Screw with Mixer
This barrier screw design has been field-tested for over 30 years, consistently proving its value in high-output applications. It ensures efficient melting and mixing for a wide range of materials.
2. High-Productivity Groove-Fed Barrier MeltPro Screw with Mixer
Featuring open and closed barrier melt channels with separated solid channels, this design provides:
- Higher throughput
- Lower melt temperatures
- Increased melting efficiency
- Proven effective in processing polyolefins, PET, ABS, and PLA, this screw excels in extrusion and blow molding processes.
These advanced screw designs offer industry-leading productivity and performance across diverse polymer applications.
Screw Barrel Applications:
- Blow molding: HDPE, PP
- Sheet Plant : Air Bubble, PP, HIPS, PVC, Cast PP
- Film Plant : PVC, Blown Film (Mono Multi Layer), Tape, lamination
- Pipe Plant : PVC Pipe, HDPE Pipe, PVC Suction, PVC Soft, PVC
- Pallet Plant : Recycling, Master Batch, & Filler
Benefits:
- Increased /Higher Melting Efficiency
- Improved output/stability
- Improved mixing in the melt channel
- Improved physical properties
